TY  - BOOK
AU  - Park Chris C Ed.
TI  - Environmental policies :  An internaitonal survey   
T2  - Croom Helm natural environment:Problem and Management series
U1  - U:(G:55), M6 
PY  - 1986///
CY  - London
PB  - Croom Helm UK        
KW  - Geography- Environment
ER  -